Não informado. (1957). Belmontia: Miscellaneous publications in botany. Agricultural University, Laboratory of Plant Taxonomy and Geography.
Chicago-Zitierstil (17. Ausg.)Não informado. Belmontia: Miscellaneous Publications in Botany. Wageningen, Holanda: Agricultural University, Laboratory of Plant Taxonomy and Geography, 1957.
MLA-Zitierstil (8. Ausg.)Não informado. Belmontia: Miscellaneous Publications in Botany. Agricultural University, Laboratory of Plant Taxonomy and Geography, 1957.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.